
Republican presidential candidate Donald Trump poses with Emma Nozell, left, and her sister Addy on Friday, July 17. The teenagers from Merrimack, New Hampshire, are on a mission to take a selfie with every presidential candidate this summer. They've already got more than a dozen.

A woman uses a selfie stick Saturday, July 18, as she attends the Boryeong Mud Festival in Boryeong, South Korea.

Maroon 5 frontman Adam Levine shows off his newly shaved head as he takes a selfie with his wife, model Behati Prinsloo, on Tuesday, July 21. "She's into me...I think...," he said on Instagram.

"Trailer park good times," said actor Harry Shum Jr. in this selfie he posted to Instagram on Friday, July 17. Behind Shum are some of his co-stars from the upcoming television series "Shadowhunters."

Talk-show host Stephen Colbert tweeted this selfie of him wearing a Galactus hat on Monday, July 20. Galactus is a villain from Marvel Comics.

Formula One chief Bernie Ecclestone poses with a person in a Yeti costume Thursday, July 16, in London. Ecclestone was promoting the Mongol Rally, a charity race that starts in England and ends in Russia. The Yeti was the mascot for one of the teams.

Football star Tom Brady gets a kiss from his wife, model Gisele Bundchen, in this selfie he posted to Facebook on Monday, July 20. "Happy Birthday to the Love of my Life," Brady wrote. "The best is yet to come. We love you!"

Singer Rita Ora, far left, takes a selfie with other judges from the UK version of "The X-Factor" on Thursday, July 16. From right are Simon Cowell, Nick Grimshaw and Cheryl. "This is by far the best Simon Cowell photograph of all time. Gotta love him," Ora said on Instagram. "Great auditions today London! See you tomorrow!"

A man takes a selfie with friends dressed as "Minions" before the start of the Underwear Run in New York's Central Park on Friday, July 17.

Television host Maria Menounos takes a selfie Friday, July 17, as her husband puts antifreeze in their broken-down pickup truck. "It worked...we made it!" she said on Instagram. "Victory! Hahahah too much adventure for one night lol."

That's actor Jake Gyllenhaal behind rappers Eminem and 50 Cent in this photo that 50 Cent posted to Instagram on Monday, July 20. They were putting their fists up to promote the upcoming movie "Southpaw," a boxing movie starring Gyllenhaal and 50.

Comedian David Spade, left, takes a selfie with actor Nick Swardson on the set of "The Ridiculous Six." Swardson "looks great," Spade joked on Instagram on Friday, July 17. "He plays himself."

Actor Zachary Quinto takes a selfie with a banjo on Monday, July 20. "Constant companion bang up job," he wrote on Instagram.

Cycling fans in Cauterets, France, wait for the peloton to arrive during the 11th stage of the Tour de France on Wednesday, July 15.

Formula One champion Lewis Hamilton takes a selfie with his new niece Willow on Monday, July 20.

"So You Think You Can Dance" judge Nigel Lythgoe, top, crashes a photo in the audience on Monday, July 20. From left is former gold-medal figure skater Tara Lipinski, former "So You Think You Can Dance" judge Adam Shankman and actress Jenna Dewan.

Women take a selfie outside a mosque in Beijing after morning prayers on Saturday, July 18.

Singer Kelly Osbourne takes a selfie with her dad, legendary rocker Ozzy Osbourne, on Tuesday, July 21. She wrote "#twins" on her Instagram post.

"Hung out with an old friend today," wrote actor Breckin Meyer, breaking out a skateboard to pay homage to his character from "Clueless." The photo was taken on Sunday, July 19 -- exactly 20 years after the movie was released. See old Polaroids of the "Clueless" cast

U.S. sprinter Justin Gatlin takes a selfie with fans in Monaco after he won the 100-meter dash at a Diamond League event on Friday, July 17.

"Thank u guys for joining me for the make a wish organization," wrote actor Norman Reedus, bottom right, on Wednesday, July 15.

A visitor takes a selfie while lying in a sea of plastic balls Friday, July 17, at "The Beach," an interactive installation at the National Building Museum in Washington.

"How much fun can 6 girls in a big city have?! Bikes are a good start!" wrote NASCAR driver Danica Patrick, front, while she was in Chicago on Monday, July 20.

"Homeward bound," actor Hugh Jackman said on Instagram on Tuesday, July 21. He had just visited Mutitjulu in Australia's Northern Territory.

A tourist holds an American flag in front of the U.S. Embassy after it reopened in Havana, Cuba, on Monday, July 20. See 23 selfies from last week



